Method and apparatus for perforating the cores of yarn packages



W. N. GERE June 10, 1930.

METHOD AND APPARATUS FdR PERFORA'IING THE CORES OF YARN PACKAGES Filed Sept. 21, 1926 2 Sheets-Shet 1 Mlr ass June 10,1930. w, N, -ERE 1,762,222

METHOD AND APPARATUS FOR PEBFORATING THE CORES OF YARN PACKAGES Filed Sept. 21. 1926 2 Sheets-Sheet. '2

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W/ TNES s atented June 10, 193

FSTTS NITE WARD N. GERE, OF SYRACUSE, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO EGLIPSE TEXTILE DEVICES INCORPORATED, OF ELMIRA HEIGHTS, NEW YORK, A

CORPORATION OF NEW YORK METHOD ANDIAJPPARATUS FOR rnnronn'rme THE corms or YARN PAcIiAGEs Application filed September 21, 1926. Serial No. 136L808.

This invention relates to a method and apparatus for perforating the cores of yarn packages.

Yarn is usually wound on a tubular core of thick paper or pasteboard, and, in order I -to produce spot-coloring of the yarn by the methods described in .U: S. Patent N 0. 1,724,015, of Ward N. Gere, dated August- 13, 1929, and U. S. Reissue Patent No. 17,096

1 of James S. Johnston, dated October 2, 1928,

and for other purposes, it isdesirable to pro- 1 vide the paper core with a series of relatively small perforations so that the coloring fluid may be introduced from the inside of the cone outwardly-through said perforations and into the registering portions of the yarn,

or from the periphery inwardly by suction. I Provision has heretofore been made for thereon from the inside outwardly but under this practice relatively small portions or burrs of the paper are forced into and against the adjacent inner layers of the yarn which it has been found interfere more or less with the free unwinding of these inner layers of the yarn from the paper cone.

Onthe other hand, it has been proposed to perforate thepaper cones from the exterior inwardly-to avoid theobject ions above referred to but under these conditions it has been necessary to unwind the yarn fromthe paper cone before the perforations could be formed. 7

- The main object of the present invention is to provide a simple and etficient means for perforating the papercones frm theexterior inwardly without unwinding theyarn therefrom thereby not only avoiding the obj ectionable peripheral burrs but also effecting a'more 40. or less loosening of the portionof the yarn registering with the perforations in the paper coreso that the coloring fluid may pass more freely and uniformly through the portions of the yarn registering with the perforations either from the-periphery of the A yarninwardly or from the inside of the paper core outwardly according to the method employed in the spot coloring operation.

Another object is to reduce the time and labor required for the perforating and colperforating these paper cones with the yarn oring operations and thereby to greatly increase the output of the spot colored yarn on the cones.

Other. objects and uses relating to specific parts of the apparatus will be brought out in the following description.

In the drawings Figures 1 and 2 are opposite side elevations of a machine for carrying out the' objects stated, a portion of Figure 2 being taken in the plane of line 2-2, Figure 3.

Figure 3 is a vertical sectional view taken on line 3- -3, Figurel.

As illustrated, the yarn cone as A'- upon its paper supporting core or cone a is placed upon a suitable mandrel 1 which in this instance is detachably secured by screw connections with one end of a shaft 2 so as to be able to rotate with said shaft about a horizontal axis although it is evident that the mandrel maybe otherwise supported if desired.

The. shaft is journaled in suitable bearings ona main supporting frame 3- and together with the mandrel is adapted to be rotated intermittingly for eflecting asimilar intermitting rotation of the yarn 'cone A'and its supporting cone --a.

The frame -3 is provided on one side with an upright guide-way 4- for receiving, supporting and guiding a vertically movable cross head or plunger 5-- which,-in this instance, overhangs the periphery of the yarn cone -A but may be otherwise sup-- ported for reciprocatory movement toward and from said periphery.

' The cross head 5 is provided with a plurality of, in this instance, two sets of punches 6- arranged in spaced, relation lengthwise of and perferably radial to the axis of the mandrel 1 between theends thereof and also-between the ends of the yarn cone A and its paper core .a when the latter are mounted upon the mandrel.

Asclearly shownin Fig. 3 each of the punches 6 isv a cylindrical rod which has a length greater than the radial depth ofthe yarn mass A-- and has ablunt rounded front end. I have found that an instrument of this character displaces the threadsof the yarn mass when forced into the mass so that itrnay penetrate the masswithout cutting, tearing or in any way in uring the yarn. At

I the same time, its blunt round point is capable of penetrating and perforating the pasteboard core a.

The portions of the mandrel registering with the punches 6 are provided with annular grooves 7 into which the inner ends of the punches 6- are adapted to project when operated to perforate the yarn cone A and its paper cone a, the remaining portions of the mandrel being preferably conical' and of a diameter corresponding to the inner diameter of the portions of the paper cone -a with which they are adapted to engage for supporting said paper cone aand yarn cone A- co-axial with the mandrel -1- and shaft -2 and also for frictionally engaging the inner surface of the paper cone afor transmitting rotary motion from the mandrel to the paper cone and thence by friction to the yarn cone.

The cross head 5- with the plungers 6 thereon is reciprocally movable vertically toward and from the periphery of the yarn cone A- for forcing the punches 6 through the registering portions of the yarn and also through the registering portions of the paper cone A when moved toward the cone while the reverse or upward movement of the cross head serves to withdraw the punches from and some distance beyond the periphery of the yarn cone to allow the perforated paper cone with the yarn thereon to be withdrawn and replaced by an unperforated cone in succession.

The means for reciprocating the cross head '-5 along the guide-way 4 comprises in this instance a horizontal rotary shaft 8- journaled in a suitable bearing in the upper end of the frame -3- and having one end provided with a crank arm --9 which is connected by a pitman 10 to the cross head 5', the throw of the crank arm 9- being sufficient to carry the punches 6 entirely through the yarn cone A- and its paper cone a, it being understood that the punches 6 are of sufficient length to pass entirely through one side of the yarn and its paper cone when the lower face of the cross head is engaged with the periphery of the yarn cone A.

This shaft -8 may be rotated by any suitable means but is preferably provided with a pulley -11 adapted to be belted to any available source of power, not shown.

Suitable means is provided for adjusting the mandrel 1- with the yarn cone A- and its core a thereon angular-1y at each return upward movement of the cross head -5 and its punches -6 so that the punches may enter different portions of the yarn --A and its core aat each downward movement.

' head 5.

One end of the lever -14- is pivoted at 15 to the upper portion of the frame 3 at one side of the shaft 8-while its other end is connected to the upper end of a downwardly extending pawl 16- having its lower end formed with a tooth -17- adapted to successively engage the teeth of a ratchet wheel 18 which is secured to a corresponding end of the mandrel supporting shaft 2 as shown more clearly in Figure 2.

The free end of the pawl 16is yieldingly held against the teethrof the ratchet wheel 18- by means of a coiled spring A spring detent -20 serves tofrictionally hold the ratchet wheel 18 against backward movement and undue rotary movement by the action of the pawl 16-.

The lever -14 is provided with a cam tooth -1 l adapted to bev engaged by the cam tooth 13 on the shaft 8- for operating the pawl 16- to rotate the ratchet wheel 18 one toothed space and thereby to effect a similar angular movement of the mandrel 1 and yarn cone -A and its core a.

The cam teeth 13 and 14- are relatively arranged to cause an abrupt lifting and return of the pawl 16 while the cross head 5 is elevated to the extreme limit of its upward stroke and in the construction shown the cam tooth -18- projects from the. shaft 8- in substantially the same direction as the crank arm 9 to as sure successive angular movements of the yarn cone at each rotation of the shaft 8. and while the punches 6- are elevated out of engagement with the yarn cone as shown by dotted lines in Figure 3.

Immediately following each angular adjustment of the yarn cone and its core a the cross head 5- is forced downwardly to cause its punches 6 to pass radially through the registering portion of the yarn cone -A and its core a so that its points project into the angular grooves 7- in the mandrel '1.

If any burrs are formed on the paper cone a by forcing the punches (i therevthrough they will be on the inside of the paper cone and not on the outside which latter with the drawings that the yarn cone A-- and its core -awill be rotated intermittingly one tooth space of the ratchet wheel constructed and arranged to receive a core; having a mass of yarn wound thereon, a

punch having a blunt rounded end, means for reciprocating said punch to move its rounded end between a point outside the periphery of the mass of yarn and a point mside the core of the mass,.andmean's automatically actuated by said reciprocatory means for turning said support about the axis of the mass when the punch is outside the periphery of the mass.

In witness whereof I have hereunto set my hand this 16th day of September, 1926.

, WARD N. GERE.

in my pending applications previously referred to or by any suitable means not necessary to herein illustrate or describe forproducing the desired spot coloring of the yarn.

Although I have shown and described a simple and highly eflicient apparatus for carrying out the object of this invention it is evident that other mechanisms may be employed for carrying out the same object, and, therefore, I do not wish to limit myself to this construction.

What I claim is 1. The method of perforating the core of a wound mass of yarn without unwinding the yarn from the core, which comprises displacing the threads of the mass to provide a passage from the outer surface of the mass toits inner surface, breakin tion of the core at theend 0 said passage by an instrument introduced through the I passage, and withdrawing the instrument to permit the passage to close over the perforation which has been formed in the core.

2. Apparatus-for perforating the core of wound mass of yarn, comprising a mandrel constructed and arranged to receive a core having a mass of yarn wound thereon and formed to provide a free space adjacent to the inner surface of the core at an intermediate part thereof, a rod having a rounded blunt end and having a length greater than the radial depth of the mass of yarn, and means for reclprocating said rod lengthwise to move its front end between a point outside-the outer periphery of the mass and a point inside said free space within the inv ner surface'of the core.

3. Apparatus for perforating the core of a woufi'd mass of yarn, comprising a mandrel "constructed and arranged to receive a core having a mass of yarn wound thereon and having an annular groove, a punch having a rounded blunt front end, and means for moving said punch lengthwise to bring its front end from a point outside the periphery of the mass to a point in said annular groove.

4. Apparatus for perforating the core of a wound mass of yarn, comprising a mandrel in the por- 

